Frank Costanza

Actor and comedian, best known for Seinfeld

Frank Costanza is an American actor and comedian, best known for his role as Frank Costanza in the popular TV show Seinfeld. He is also known for his iconic Festivus holiday, which he created as a parody of the traditional Christmas holiday. Costanza has appeared in numerous TV shows and films, including Seinfeld, The Marvelous Mrs. Maisel, and Curb Your Enthusiasm. He is a stand-up comedian and has written several b...